The FB (Fat Boy) Fittings from Danger Den are now the most reliable and universal fitting to date. The FB Fitting integrates an O-Ring capture to seal. Large ID bore for high flow and lower pressure drop compared to other fittings. Designed with a G 1/4 BSPP straight thread.

Features:

Large Bore 0.400" (10.1mm) for 1/2" fittings and 0.335" (8.5mm) for 3/8" Fittings

O-Ring capture to prevent over-tightening and/or damaging the O-Ring

Larger diameter O-Ring to help seal parts with a minor countersink

Pricing is per each fitting

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Customer Reviews

Author: systemvipersLove these fittings, i was a big fan of hte high flow but I am now switching to the fat boys.

these are sweet fittings...

Author: uh8medonchaI bought 4 of these to replace a couple of the older high flow barbs and they are fantastic. The O-ring capture seal keeps the O ring from herniating under uneven pressure or to my direct down force. I am replacing all of my barb with the asap!

Author: TekThe only thing I dont like about these barbs is the short length of the threaded portion. I dont feel like I am getting the same quality seal as perfect seal or high flow barbs. Especially when you put them into an acrylic hole such as a res.

Author: DaveAs Martin proved, barbs are (almost immeasurably) less-restrictive than *any* compression fitting. From personal experience, the Fat Boys are fantastic! Captive o-rings are a must. So, what are you waiting for? Grab some right now!

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